| chemiosmosis | <biochemistry, cell biology> A theoretical mechanism (proposed by Mitchell) to explain energy transduction in the mitochondrion. As a general mechanism it is the coupling of one enzyme catalysed reaction to another using the transmembrane flow of an intermediate species. For example Cytochrome oxidase pumps protons across the mitochondrial inner membrane and ATP synthesis is driven by re entry of protons through the ATP synthesising protein complex. The alternative model is production of a chemical intermediate species, but no compound capable of coupling these reactions has ever been identified. (18 Nov 1997) |
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| chemiosmosis |
The Chemiosmotic Hypothesis is the proposal in 1961, by Peter D. Mitchell, that the mitochondrion functioned as a kind of electrochemical capacitor, using the energy of NADH and FADH2 to create a proton gradient across the mitochondrial membrane and that this energy was used by a reversible proton pump, the ATP synthase, to create ATP. This was a radical proposal at the time, and not well accepted. ...
출처: en.wikipedia.org/wiki/Chemiosmosis
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| chemiosmosis |
The mechanism through which ATP is produced in the inner membrane of the mitochondrion. The electron transport system transfers protons from the inner compartment to the outer and as the protons flow back to the inner compartment, the energy of their movement is used to add phosphate to ADP, forming ATP.
출처: www.jcu.edu.au/fmhms/school/pms/CGC/DictCellBiol.h...
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| chemiosmosis |
the process by which a flow of protons (H + ) through an ATPase complex in the thylakoid membrane powers the synthesis of ATP from ADP and P i
출처: web.mala.bc.ca/mcmillan/biology122terms3.htm
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| chemiosmosis |
The cell creates a gradient of H+ ions outside of the mitochondria then brings them in through the ATP synthase enzyme, providing the energy necessary to bond ATP.
출처: www.plainfield.k12.in.us/hschool/curric/science/gl...
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